IXL skills
microtubule
straight, hollow tube of proteins that gives rigidity, shape, and organization to a cell
cell wall
A rigid structure that surrounds the cell membrane and provides support to the cell
lysosome
An organelle containing digestive enzymes
chromatin
Clusters of DNA, RNA, and proteins in the nucleus of a cell
centroles
Composed of microtubules and are associated with nuclear division. Found in the centrosome.
nucleus
Control center of the cell
smooth ER
ER that has no ribosomes
rough ER
That portion of the endoplasmic reticulum studded with ribosomes.
cytosol
The semifluid portion of the cytoplasm.
mitochondrion
an organelle containing enzymes responsible for producing energy
centrosome matrix
attaches to microtubles, cell division
nuclear envelope
layer of two membranes that surrounds the nucleus of a cell
ribosomes
make proteins
nucleouls
makes ribosomes
peroxisome
microbodies found in animal cells
golgi apparartus
packages secretion for discharge from cell
microvilli
projections that increase the cell's surface area
plasma membrane
regulates which molecules are allowed to enter and exit the cell
intermediate filament
stable cytoskeletal element that structurally supports cells and tissues
